Weft-carrier-releasing device



C. S. WRIGHT. WEFT CARRIER RELEASING DEVICE.

APPLICATION RED MAR. 12, 1919- Patented Apr. 20, 1920.

2 SHEETS-SHEET 1.

C. S. WRIGHT.

WEFT CARRIER RELEASING DEVICE.

APPLICATION FILED MAR. 12, 1919.

1,337,683. V Patented Apr.-20, 1920.

2 SHEETS-SHEET 2- @NITED STATES PATENT OFFICE.

CHARLES S. WRIGHT, OF HYDE PARK, MASSACHUSETTS, ASSIGNOR '10 CROMPTON 8c KNOWLES LOOM VVO'RKS, A CORPORATION OF MASSACHUSETTS.

WEFT-CARRIER-RELEASING DEVICE.

Specification of Letters Patent.

Patented Apr. 20, 1920.

Application filed March 12, 1919. Serial No. 282,091.

To all whom it may concern Be it known that 1, CHARLES S. lVRIGH'r, a citizen of the United States, residing at Hyde Park, in the county of Norfolk and State of Massachusetts, have invented a new and useful Weft-Carrierddeleasing Device, of which the following is a specification.

This invention relates to a weft carrier releasing device designed for use in connection with a weft re lenishin ma azine of I D b the stationary type in which two or more different kinds of weft carriers are commonly used.

These weft carriers are selectively advanced to transfer position, ant. provision has been heretofore made for releasing a selected weft carrier if for any reason it fails of transfer.

It is the object of my present invention to provide an improved device for thus releasing a selected weft carrier, which device is so constructed that it cannot be injured by a widely misplaced weft carrier in the active shuttle.

With this object in view, an important feature of my invention relates to the provision of a weft releasing member normally movable angularly in two directions, and having an additional bodily movement rearward when engaged by a misplaced weft carrier.

A further feature consists in providing a support for the releasing member which is normally held in fixed position, but which may be moved therefrom when said member is engaged by a misplaced weft carrier.

Other features of my invention relate to arrangements and combinations of parts which will be hereinafter described and more particularly pointed out in the appended claims.

A preferred form of my invention is shown in the drawings, in which- Figure 1 is a side elevation of my improved releasing device;

Fig. 2 is a front elevation thereof taken along the line 2--2 in Fig. 1;

Fig. 3 is a horizontal sectional view taken along the line 3-3 in Fig. 2;

Figs. 4 and 5 are side elevations showing the parts in different positions, and

Fig. 6 is a detail of certain parts.

Referring to the drawings, I have shown portions of a weft replenishing magazine 10 having a rearward extension 11 on which my improved releasing device is mounted. The normal position of the parts is shown in Fig. 1 in which the weft carrier support 12 retains the weft carrier W in position for transfer. The support 12 is pivoted at 13 to an arm 14% which in turn is pivoted at 15 to a stand 16 bolted to the extension 11.

A lug 17 extends outward from this stand 16 and is engaged by a latch 18 pivoted at 19 to the arm 14:. The upper face of the lug 17 is rounded, and the latch 18 is notched to correspond thereto. A rod 20 is pivoted at 21 to the rear portion of the support 12 and extends freely through an opening in the rear end of the latch 18. A spring 22 surrounds the rod 20 and is interposed between the support 12 and the latch 18.

A lever 23 is mounted on a fixed pivot 21,

and on every alternate pick of the loom this lever is moved to the dotted line position in Fig. 1 by a link 25 connected to suitable actuating mechanism not shown herein, but fully described in prior Patent No. 932,119. Such actuation of the lever 23 moves the support 12 to the dotted line position shown in Fig. 1 and releases the weft carrier WV. This is the normal operation of the releasing device.

A member 26 is pivoted at 27 to the stand 16 and has a downwardly extending portion 28 positioned to engage a lug 29 projecting rearwardly from the support 12. A stifi spring 30 is interposed between the stand 16 and the member 26, and an ad justino; screw 81 threaded in the rear end. of the member 26 engages a shoulder on the stand 16 and limits movement of the member 26 under the influence of the spring 30. With this construction the projection 28, engaging the lug 29 on the support 12, forms a stop which determines the normal position of the support 12 and from which position the left-hand end of the support 12 is swung downwardly intermittently by the lever 28.

When, however, a weft carrier is caught in the active shuttle in such a position that 30 and swinging the member 26 about its pivot. Such movement permits the support 12 to be raised sufficiently above normal position to prevent injury by a slightly misplaced weft carrier.

When a weft carrier is widely misplaced, as indicated in Fig. 5, such upward move ment of the support is not possible and in this case the support 12 will be swung downward by the weft carrier until the support engages a stop surface 32 (Fig. 6) in the forked end of the arm 14, after which engagement the support and arm are moved forcibly rearwardly, disengaging the latch 18 from the lug 17. As soon as these parts are disengaged, the support is free to swing to the position indicated in dotted lines in Fig. 5, and injury of the parts is thus effectively prevented. After such disengagement, manual resetting of the parts is necessary before the device is again operative.

Having thus described my invention, it will be seen that I have provided a simple mechanism by which the weft carrier may be released in the ordinary operation of the loom, and in which the parts are not permanently displaced by a slightly misplaced weft carrier, while at the same time I prevent injury to the releasing device by a widely misplaced weft carrier.

Having thus described my invention, it will be evident that changes and modifications can be made therein by those skilled in the art without departing from the spirit and scope of my invention as set forth in the claims, and I do not wish to be otherwise limited to the details herein disclosed, but what I claim is- 1. A weft carrier releasing device for-a weft replenishing magazine comprising an arm mounted on a fixed pivot, a weft carrier support pivoted to said arm, means to yieldingly hold said support in operative position, and a normally fixed connection between said arm and said magazine which yields to permit said arm to be swung rearwardly on engagement of said support by a widely misplaced weft carrier.

2. A weft carrier releasing device for a weft replenishing magazine comprising a movably mounted arm, a weft carrier support pivoted to said arm, and a fixed member, said support being yieldingly movable angularly relative to said arm from normal position in two directions, and said arm being also yieldingly latched to said fixed member, thus permitting rearward movement of said arm and of said support under abnormal conditions.

3. A weft carrier releasing device for a weft replenishing magazine comprising a movably mounted arm, a weft carrier support pivoted to said arm, a fixed stop, a yielding latch pivoted to said arm and normally engaging said fixed stop, and a spring effective to yieldingly retain both said support and said latch in normal position.

4:. A weft carrier releasing device for a weft replenishing magazine comprising a movably mounted arm, a weft carrier support pivoted to said arm, a member mounted to yield in one direction and engaging said support, a spring yieldingly opposing movement of said support in the opposite direction, and a latch normally preventing rearward bodily movement of said support but permitting such movement when said support is engaged by a widely misplaced weft carrier.

5. A weft carrier releasing device for a weft replenishing magazine comprising a movably mounted arm, a fixed abutment, a latch on said arm yieldingly engaging said abutment, a weft carrier support pivoted on said arm, and means to definitely position said support relative to said arm while permitting limited angular displacement of said support in both directions.

In testimony whereof I have hereunto affixed my signature.

CHARLES S. WRIGHT. 

